| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #include "config.h" |
| #include "ttymode.h" |
| |
| #include <stdarg.h> |
| #include <stdbool.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| int guac_ssh_ttymodes_init(char opcode_array[], ...) { |
| |
| /* Initialize the variable argument list. */ |
| va_list args; |
| va_start(args, opcode_array); |
| |
| /* Initialize array pointer and byte counter. */ |
| char *current = opcode_array; |
| |
| /* Loop through variable argument list. */ |
| while (true) { |
| |
| /* Next argument should be an opcode. */ |
| char opcode = (char)va_arg(args, int); |
| *(current++) = opcode; |
| |
| /* If it's the end opcode, we're done. */ |
| if (opcode == GUAC_SSH_TTY_OP_END) |
| break; |
| |
| /* Next argument should be 4-byte value. */ |
| uint32_t value = va_arg(args, uint32_t); |
| *(current++) = (value >> 24) & 0xFF; |
| *(current++) = (value >> 16) & 0xFF; |
| *(current++) = (value >> 8) & 0xFF; |
| *(current++) = value & 0xFF; |
| } |
| |
| /* We're done processing arguments. */ |
| va_end(args); |
| |
| return current - opcode_array; |
| |
| } |